Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
diep dinh » diep tinh, hiep dinh, diep ninh
hanh hang » thanh hang, hang hang, hanh han
dang cong » dung cong
hang cua » mang cua, hang ca, huong cua
cua dang » cua cong, cua ban
cong san » cong tac
san phan » san pham, van phan, sat phan

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((diep dinh) or (chieu sang)) - hanh hang cua dang cong san phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((diep dinh) OR (chieu sang)) - hanh hang cua dang cong san phan tu.
• Adding a wildcard symbol may retrieve word variants: theo ((diep dinh) or (chieu sang)) - hanh hang cua dang cong san phan tu*.